During chordate evolution, what is the sequence (from earliest to most recent) in which the following structures arose? A) paired fins, jaws, swim bladder, amniotic egg, four-chambered heart
B) jaws, paired fins, swim bladder, four-chambered heart, amniotic egg
C) jaws, paired fins, paired fins, swim bladder, four-chambered heart
D) paired fins, amniotic egg, four-chambered heart, jaws, swim bladder

Respuesta :

During chordate evolution, paired fins, jaws, swim bladder, amniotic egg, and four-chambered heart is the sequence structures arose (from earliest to most recent).

Origin of chordate :

Chordates are thought to have evolved from a deuterostome ancestor (echinoderms, hemichordates, pogonophorans, etc.) due to similarities in embryonic development, coelom type, and larval stages. The earliest vertebrate fossils date back to the Silurian-Devonian period, approximately 400 million years ago.

level of classification is Chordata :

Phylum Chordata is one of the Kingdom Animalia classifications. Chordata is distinguished by the presence of a notochord, a hollow nerve cord, and paired pharyngeal gills. They are bilaterally symmetric, with a cavity inside for true organs.

To learn more about coelom , visit:

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